'Impel' definitions:

Definition of 'impel'

From: WordNet
verb
Urge or force (a person) to an action; constrain or motivate [syn: impel, force]
verb
Cause to move forward with force; "Steam propels this ship" [syn: propel, impel]

Definition of 'Impel'

From: GCIDE
  • Impel \Im*pel"\, v. t. [imp. & p. p. Impelled; p. pr. & vb. n. Impelling.] [L. impellere; pref. im- in + pellere, pulsum, to drive. See Pulse a beat, and cf. Impulse.] To drive or urge forward or on; to press on; to incite to action or motion in any way. [1913 Webster]
  • The surge impelled me on a craggy coast. --Pope.
  • Syn: To instigate; incite; induce; influence; force; drive; urge; actuate; move. [1913 Webster]

Synonyms of 'impel'

From: Moby Thesaurus